Add configurable snippet support and extend user comment info

src/main/java/com/openisle/controller/UserController.java

@@ -36,6 +36,9 @@ public class UserController {
     @Value("${app.user.replies-limit:50}")
     private int defaultRepliesLimit;
 
+    @Value("${app.snippet-length:50}")
+    private int snippetLength;
+
     @GetMapping("/me")
     public ResponseEntity<UserDto> me(Authentication auth) {
         User user = userService.findByUsername(auth.getName()).orElseThrow();
@@ -172,6 +175,12 @@ public class UserController {
         PostMetaDto dto = new PostMetaDto();
         dto.setId(post.getId());
         dto.setTitle(post.getTitle());
+        if (snippetLength >= 0) {
+            String c = post.getContent();
+            dto.setSnippet(c.length() > snippetLength ? c.substring(0, snippetLength) : c);
+        } else {
+            dto.setSnippet(post.getContent());
+        }
         dto.setCreatedAt(post.getCreatedAt());
         dto.setCategory(post.getCategory().getName());
         dto.setViews(post.getViews());
@@ -183,7 +192,14 @@ public class UserController {
         dto.setId(comment.getId());
         dto.setContent(comment.getContent());
         dto.setCreatedAt(comment.getCreatedAt());
-        dto.setPostId(comment.getPost().getId());
+        dto.setPost(toMetaDto(comment.getPost()));
+        if (comment.getParent() != null) {
+            ParentCommentDto pc = new ParentCommentDto();
+            pc.setId(comment.getParent().getId());
+            pc.setAuthor(comment.getParent().getAuthor().getUsername());
+            pc.setContent(comment.getParent().getContent());
+            dto.setParentComment(pc);
+        }
         return dto;
     }
 
@@ -206,6 +222,7 @@ public class UserController {
     private static class PostMetaDto {
         private Long id;
         private String title;
+        private String snippet;
         private java.time.LocalDateTime createdAt;
         private String category;
         private long views;
@@ -216,7 +233,15 @@ public class UserController {
         private Long id;
         private String content;
         private java.time.LocalDateTime createdAt;
-        private Long postId;
+        private PostMetaDto post;
+        private ParentCommentDto parentComment;
+    }
+
+    @Data
+    private static class ParentCommentDto {
+        private Long id;
+        private String author;
+        private String content;
     }
 
     @Data

src/main/java/com/openisle/service/SearchService.java

@@ -22,6 +22,9 @@ public class SearchService {
     private final PostRepository postRepository;
     private final CommentRepository commentRepository;
 
+    @org.springframework.beans.factory.annotation.Value("${app.snippet-length:50}")
+    private int snippetLength;
+
     public List<User> searchUsers(String keyword) {
         return userRepository.findByUsernameContainingIgnoreCase(keyword);
     }
@@ -104,18 +107,29 @@ public class SearchService {
 
     private String extractSnippet(String content, String keyword, boolean fromStart) {
         if (content == null) return "";
+        int limit = snippetLength;
         if (fromStart) {
-            return content.length() > 50 ? content.substring(0, 50) : content;
+            if (limit < 0) {
+                return content;
+            }
+            return content.length() > limit ? content.substring(0, limit) : content;
         }
         String lower = content.toLowerCase();
         String kw = keyword.toLowerCase();
         int idx = lower.indexOf(kw);
         if (idx == -1) {
-            return content.length() > 50 ? content.substring(0, 50) : content;
+            if (limit < 0) {
+                return content;
+            }
+            return content.length() > limit ? content.substring(0, limit) : content;
         }
         int start = Math.max(0, idx - 20);
         int end = Math.min(content.length(), idx + kw.length() + 20);
-        return content.substring(start, end);
+        String snippet = content.substring(start, end);
+        if (limit >= 0 && snippet.length() > limit) {
+            snippet = snippet.substring(0, limit);
+        }
+        return snippet;
     }
 
     public record SearchResult(String type, Long id, String text, String subText, String extra, Long postId) {}

src/main/resources/application.properties

@@ -20,6 +20,8 @@ app.upload.max-size=${UPLOAD_MAX_SIZE:5242880}
 # Default list size for user posts and replies
 app.user.posts-limit=${USER_POSTS_LIMIT:10}
 app.user.replies-limit=${USER_REPLIES_LIMIT:50}
+# Length of extracted snippets for posts and search (-1 to disable truncation)
+app.snippet-length=${SNIPPET_LENGTH:50}
 
 # Captcha configuration
 app.captcha.enabled=${CAPTCHA_ENABLED:false}